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Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth(Figure 1) : An oak barrel with a lid of area 0.17m2 is filled with water. Along, thin tube of cross-sectional area 5.3*10^(-5)m2 is inserted into a hole at the center of the lid, and water is poured into the tube. When the water reaches 12 m high, the barrel bursts.
Part A What was the weight of the water in the tube?
Part B What was the pressure of the water on the lid of the barrel?
Part C What was the net force on the lid due to the water pressure?
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5 kg of water at 60 degrees are put in contact with 1 kg of ice at 0 degrees and are thermally isolated from everything else. What is the change in entropy of the universe while the ice melts
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A beam of unpolarized light in air is incident at an angle of 59.0? (with respect to the normal) on a plane glass surface. What is the angle of refraction of the transmitted beam
An isolated hollow spherical conducting shell has a charge of 10^-6 C. In some manner, a point charge of 3*10^-6 C is placed inside the cavity of the shell,find the charge on the inner surface of the shell
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